Patents for C09K 19 - Liquid crystal materials (21,026)
03/1993
03/02/1993US5190687 Liquid-crystalline polymers and copolymers
03/02/1993US5190686 Liquid-crystalline copolymer
02/1993
02/24/1993EP0528449A2 Device, method and apparatus for optical modulation
02/24/1993EP0528415A1 Stabilized complex ligands and their use in liquid crystal displays
02/24/1993EP0528268A2 Optically active esters of phenoxypropionic acid
02/24/1993EP0528050A1 Side chain type polymer liquid crystal
02/23/1993US5189540 Liquid crystal display device having a material for disturbing the orientation of the liquid crystal molecules
02/23/1993US5189134 Nonlinearly optically active polymers
02/23/1993US5188815 Thermochromic mixtures
02/23/1993US5188762 Mesomorphic compound, liquid crystal composition, liquid crystal device, display apparatus and display method
02/23/1993US5188761 Ferroelectric liquid crystal composition and light switching element comprising the same
02/23/1993US5188760 Liquid crystalline material and display cell containing said material
02/23/1993US5188759 Haloacetylene derivatives
02/23/1993US5188758 Electrooptical display element using a supertwist liquid crystal having specified elastic constants
02/18/1993WO1993003114A1 Liquid-crystal elastomers or duromers with a permanently fixed anisotropic reticular structure
02/18/1993DE4226298A1 LCD based on electrically controlled birefringence - contains multicomponent nematic medium contg. LC cpds. of 5 specified types
02/18/1993DE4127287A1 Verwendung von zusatzstoffen in orientierungsschichten von flc-displays zur reduzierung der optischen hysterese Use of additives in orientation layers of flc-displays for reduction of the optical hysteresis
02/17/1993EP0527439A1 Alignment treating agent for liquid crystal cell
02/17/1993EP0527376A1 Organic photoconductors with liquid crystalline properties
02/17/1993EP0527231A1 Optical anisotropic material and its manufacturing, and liquid crystal device provided therewith and its manufacturing
02/17/1993EP0527201A1 Novel monomers and process to synthesize liquid crystalline polyesters
02/16/1993US5187298 Enantiotropic, ferroelectric smectic liquid crystal polymers; two thermodynamically stable phases; polyacrylates
02/16/1993US5187248 Monomers and their use for the production of a laser-optical recording element which can be repeatedly erased and recorded on
02/16/1993US5186858 Ferroelectric chiral smectic liquid crystal composition and liquid crystal device using same
02/11/1993DE3348386C2 Anisotropic cpds. for liq. crystal mixts.
02/10/1993EP0364588B1 Liquid crystal composition
02/10/1993EP0358741B1 Derivatives of 2,3-difluorobenzoic acid
02/10/1993EP0334911B1 Substituted phenyltrifluormethylethers
02/09/1993US5185419 Poly(arylenevinylenesiloxanes) compounds
02/09/1993US5185098 Liquid crystalline mixtures containing 3,4-difluorophenyl-substituted bicyclohexyls
02/09/1993US5185097 Polymeric liquid-crystalline compound, liquid-crystal composition containing it, and liquid-crystal drive
02/09/1993US5184847 Liquid crystal compounds
02/04/1993WO1993003113A1 Liquid-crystal compounds
02/04/1993WO1993002153A1 Liquid-crystal material
02/04/1993WO1993002152A1 Liquid-crystal material
02/04/1993WO1993002144A1 Polymer alloy made of polyetherimides and liquid-crystalline copolyesters
02/04/1993WO1993002092A2 Galacturonic acid derivatives, process for their preparation and applications thereof
02/04/1993CA2093212A1 Liquid-crystalline compounds
02/03/1993EP0525887A2 Thermotropic copolyester, process for preparing it and use thereof in the preparation of vulcanized rubbers
02/03/1993EP0525737A1 An antiferroelectric liquid crystal composition
02/03/1993EP0525492A1 Electro-optical arrangement
02/03/1993EP0525144A1 Nematic liquid-crystal composition.
02/03/1993EP0525140A1 Liquid-crystal compounds
02/02/1993US5184233 Liquid crystal-based composite material including electrically conducting elongated particles and having enhanced microwave birefringence
02/02/1993US5183587 Liquid crystalline compound
02/02/1993US5183586 Ferroelectric chiral smectic liquid crystal composition and liquid crystal device using same
02/02/1993US5183585 Dispersants comprising saponification product of polyvinyl acetate resin, aliphatic alcohol and water; free of bubbles, surface smoothness, brightness
01/1993
01/28/1993DE4217248A1 Vinylverbindungen und fluessigkristallines medium Vinyl compounds and fluessigkristallines medium
01/28/1993DE4124859A1 Fluessigkristalline elastomere oder duomere mit fixierter anisotroper netzwerkstruktur Fluessigkristalline elastomeric or duomere with fixed anisotropic network structure
01/27/1993EP0201554B2 Compounds for ferroelectric liquid crystal devices
01/26/1993US5182394 Liquid crystalline diglycidyl compounds
01/26/1993US5182340 Blends of mesogenic polythiiranes, epoxy resin and curing agent
01/26/1993US5182334 Compatible LCP blends via direct esterification
01/26/1993US5182047 Fluorinated biphenyldiole derivatives
01/21/1993WO1993001254A1 Optical devices, their production and use
01/21/1993WO1993001253A1 Liquid-crystalline medium
01/21/1993WO1993001227A1 Thermotropic liquid crystal segmented block copolymer
01/21/1993DE4123539A1 Fluessigkristallines medium Fluessigkristallines medium
01/21/1993DE4123389A1 Fluessigkristallines medium Fluessigkristallines medium
01/21/1993CA2113113A1 Thermotropic liquid crystal segmented block copolymer
01/20/1993EP0524028A1 Viewing angle compensator for liquid crystal display
01/20/1993EP0523543A1 Chiral piperazine derivatives
01/20/1993EP0523256A1 Liquid crystal display device, and manufacture and application thereof
01/20/1993CA2073898A1 Prepolymeric polyols containing mesogenic units
01/19/1993US5180521 Liquid crystal displays, cyclohexyl nitriles
01/19/1993US5180520 Ferroelectric liquid crystal compositions containing halogenated cores and chiral halogenated cores and chiral haloalkoxy tail units
01/19/1993US5180519 Alkenyl ether derivative and liquid crystal composition containing the same
01/14/1993DE4123301A1 5-Alkoxy-pyrimidin-2-yl cpds. - used in liquid crystal mixt. and super-twist LCD, with short switching time and wide viewing angle
01/12/1993US5179192 Molding material
01/12/1993US5179101 Pyrimidines
01/12/1993US5178794 Electro-optical display materials; clocks, computers
01/12/1993US5178793 Chiral epoxy ethers with phenyl and pyridine or pyrimidine ring
01/12/1993US5178792 Electrooptical appartus with improved contrast
01/12/1993US5178791 Halogenated diphenyldiacetylene liquid crystals
01/12/1993US5178790 Supertwist liquid crystal display
01/12/1993US5178571 Method for manufacturing an electro-optical device
01/07/1993EP0521617A1 Liquid crystal composition, liquid crystal element and process for the preparation of liquid crystal element
01/07/1993EP0521496A2 Process for producing optically active carboxylic acids
01/07/1993EP0521420A1 Fluorinated cyclohexyl derivatives
01/07/1993EP0350510B1 Ferroelectric liquid crystal composition
01/07/1993DE4122732A1 Potential side-chain liq. crystal acrylate monomers prepn. - by reaction of 4-hydroxybenzoic acid with 4-alkoxyphenol or bisphenol then with di:bromo:alkane and then with alkali (meth)acrylate
01/07/1993DE4120783A1 Optically-active oxirane deriv. liq crystal dopants - have fast switching times and are useful as helix compensation additives, etc.
01/05/1993US5176845 Mesomorphic compound, liquid crystal composition, liquid crystal device, display apparatus and display method
01/05/1993CA2073122A1 Process for the preparation of optically active carboxylic acids
12/1992
12/30/1992EP0520800A1 Liquid crystal display element
12/30/1992EP0520754A2 Liquid crystal display element
12/30/1992EP0520292A1 Chiral azetidinone derivatives and their use as dopants in liquid crystalline mixtures
12/30/1992EP0348480B1 Dispersion of liquid crystal droplets in a photopolymerized matrix, and devices made therefrom
12/30/1992EP0338054B1 Cross coupling of titanium organyls
12/29/1992US5174921 Liquid crystalline mixtures, used for electro-optical purposes
12/29/1992US5174920 Liquid crystal display device
12/24/1992DE4119969A1 Liquid crystal medium giving bistable image
12/23/1992EP0519370A2 Heterocyclic derivatives
12/23/1992EP0345357B1 Liquid crystal composition
12/22/1992US5173562 Liquid crystal polymer composition containing bisphenol A in combination with 4,4'-thiodiphenol
12/22/1992US5173211 Improved responsiveness
12/16/1992EP0518636A1 Liquid crystal compounds and compositions
12/16/1992EP0518190A2 Alkenyloxyphenyl pyrimidines
12/16/1992EP0518189A2 Phenyl pyridins
12/16/1992EP0517715A1 Bistable electrochirally controlled liquid crystal optical device